title: Intraocular electro-optic lens with ciliary muscle controlled accommodation.
abstract: In this paper a concept is proposed of an intraocular lens implant with electro-optic accommodation of a variable-focus hybrid liquid-crystal-based lens. The dioptric strength of the lens is electronically controlled by a signal that is derived from the change of inductance of a sensing coil due to a marker implanted in the nearby contracting or decontracting ciliary muscle. Analytical, numerical and experimental results are reported on the dependency of the frequency of a Colpitts oscillator circuit on the location of a nearby conductive marker. A concept is also reported on the use as an electro-optic lens of a device based on a liquid crystal in planar alignment, which is held between a flat and a curved window coated with optically transparent and electrically conductive layers.
authors.forename: Dries
authors.initials: D
authors.lastname: Doornaert
authors.forename: Christ
authors.initials: C
authors.lastname: Glorieux
authors.forename: Herbert
authors.initials: H
authors.lastname: De Gersem
authors.forename: Robert
authors.initials: R
authors.lastname: Puers
authors.forename: Werner
authors.initials: W
authors.lastname: Spileers
authors.forename: Johan
authors.initials: J
authors.lastname: Blanckaert
mesh_terms: D000065:Accommodation, Ocular / Q000502:physiology*; D002924:Ciliary Body / Q000502:physiology*; D056228:Feedback, Sensory / Q000502:physiology; D006801:Humans; D007910:Lenses, Intraocular; D050866:Liquid Crystals; D009119:Muscle Contraction / Q000502:physiology; D009130:Muscle, Smooth / Q000502:physiology*; D055096:Optical Devices; D055095:Optics and Photonics